Rotary slicing machine



.I an. 14, 1930. J. H. DALEN 1,743,435

ROTARY sLIcING MACHIIlgE Filed March 3, 1928 5 Sheets-Sheet l l I I Il II I I I .1. H. DALEN 1,743,435

ROTARY SLICING MACHINE Jan. 14, 1930.

Filed March 3, 1928 5 Sheets-Sheet 2 INVENTOR.

Jan. 14, 1930. J H. DALEN 1,743,435 ROTRY SLICING' MACHINE K Filed March3, 192e 5 sheets-sheet 5 mi.: ink.

Jan. 14, 1930. 1 H, DALEN 1,743,435

ROTARY SLICING MACHINE Filedmaroh s, 192e 5 sheeths-sneex 4 7 1 6 j 22z/ u n n 1v v "I" "Hmm" WWW- "WH" M /7 Wh HW l Il: Y ll IWInVhL lmll""Mh,

/Zf l ,4/ 34 375676 (5i/I, 5,17 (J2-l v V -l INVENTOR. J'f vf/y Q NHATTORNEY Jan. 14, 1930. J. H. DALEN ROTARY SLICING MACHINE 5 Shets-Sheet5 Filed March 5. 1928 I N VEN TOR. $77,/ zfof ATTORNEY v Patented Jan.14, 1930 JOHN n'. DALEN, or BERKELEY, CALIFORNIA ROTARY SLCING MAOHIEApplication led March 3,

The invention forming the subjectmatter of this application relates toslicing machines7 and-particularly to the type of slicing machine Whichis used for slicing thin separator sheets such as are commonly used inWet-cell batteries.v

The primary object of the invention is the provision of a machine whichrapidly and accurately slices thin Wet-battery separator sheets out or"a comparatively large block of Wood, said block being shaped to conformto the outline or" the separator sheets, and in Which machine aplurality of large blocks of Wood are automatically fed to the slicingblade.

A further object ont the invention is the provision of adjusting meanstor a slicing machine by which the blades thereof may be minutelyadjusted for slicing the separator sheets to the required thickness.

A still further object of the invention is the provision of a slicingdisc in a slicing machine, said disc carrying the slicing blades in sucha manner that the rotation oit the disc gradually impresses the bladesWith a carving motion into a Wood block held thereabove, thereby causingthe blades to delaminate smooth and thin separator sheets.

Ano-ther object ot the invention is the provision ot a slicingmachine inwhich comparatively large bullis of seminished material, such as blocksof Wood, are held and fed by stationary guides against the top of arotating disc, which disc carries blades thereon, the blades being socurved as to pare oli the lovvcrmost stratum of said Wood blocks bygradually and diagonally cutting thru the blocks; the line of cut beingslightly diagonal to the direction oi the grain oi' the block andslightly diagonal to the edge of the block so as to secure a shearingcut apT proximately parallel with the grain and the edges of the block;said separator sheets to be so accurately cut as to have an even; overLall thickness, the disc being so designed that the delaminated slicesreadily drop therefrom by their own gravity upon conveyors convenientlydisposed below the disc.

Another object of the invention is the prol vision ofl blade-sharpeningmeans on a slic- 192s. serial No. 258,754.

ing machine which may be connected at Will to the blade holder disc soas to be actuated by the turning thereof; said sharpening means beingmoved relatively to said disc' in such a Way as to follow precisely thecut- Y ting edge of a blade.

The essential features of the invention in# volved in the carrying outor" the objects indicated are susceptible to modification7 but apreier'red embodiment of the invention is shown in the accompanyingdrawings', in which:

Figure l is a side View of the device;

Figure 2 is a plan viev7 of the slicing machine showing the feedingmeans partly cut away;

Figure 3 is a fragmentary plan view'o'f the blade-carrying disc;

Figure 4 is a sectionalv view taken on the line 4 4 of Figure 3;

Figure 5 is a plan view of Figure 4;

Figure 6 is a fragmentary, sectional View taken on the line 6 6 ofFigure 2;

Figure 7 is a sectional view taken on the line 7 7 of Figure 3;

Figure 8 is a detailed View of the bladesharpening mechanism, showingthe same partly in section; i

Figure 9 is a plan view of the blade-sharpening mechanism; and

Figure l() is a sectional view taken on the line 10-l0 of Figure 4.

In carrying out my invention.V I employ a frame, designated inV itsentirety by the character A, which supports a slicing mechanism B. AbovetheV slicing mechanism are di"-V posed a plurality of feeding mechanismsC.

The trame A is illustrated as constructed` of angle irons 6 dispose-d soas to form a polygonal base, at the corners ot which uprights 7 extendvertically above the slicing mechanism B. The uprights are securedto theangle ironsl 6. The upper extremities of the upright members 7 are heldtogether by brace members 8, said brace members extending substantiallyin parallelism vv'ith the top of the slicing mechanism B. The inside eX-tremities of said brace members are secured to each other in' such amanner as to leave an opening for the upwardly protruding parts of YSOTv the slicing mechanism B to be hereinafter described. Struts 9 aresecured to the base and are disposed so that the inside extremitiesthereof converge and form a support for a bearing box 11. A

y The slicing mechanism B comprises a spoked. wheel 12, a hub 13 dependsdownwardly therefrom into the bearing housing 11 and rests upon a ballbearing 14, as clearly shown in Figure 6. In order to maintain thespoked wheel 12 in its position, a shaft 16 extends thru the hub 13,theY wheel being rotatable around the shaft 16. The friction Vbetweenthe hub 13 and the shaft 16 is reduced by means of a ball bearing 17 inthe upwardly protruding portion 18 of the hub.

The shaft 16 extends lthru the bearing box 11 and is held against axialupward move- 28 extends from one spoke to the next.

ment by a head 19 at the lower extremity7 thereof. A bracket 21 securedto the inner ends of the bracing members 8 receives the upper end of theshaft 16 and maintains the same in its fixed position by means of a pin22 extending thru the shaft 16 and thru said bracket 21. A worm wheel 23is ixedly secured to the hub 13 inside of the box 11 and is rotated by aworm 24 rotatably supported in the walls of said box. The worm 24, inturn, is rotated by anelectric motor 26 from which the power istransmitted to the worm 24 by any conventional transmission means suchasa belt 27. f

The wheel 12 has six spokes therein and in every second space betweenthe spokes a we plate 29 is secured to saidweb 28 by means of screws 31.The web is so shaped as to conform to the outline of the stationaryplate 29. Vne edge of the plate 29 is curved for the purpose to behereinafter described, and the curved edge 32 ofthe plate 29 determinesthe i shape and the extent of the web 28. In every other space betweenthe spokes, another set of' stationary plates 33 is disposed, whichnlatterplate is secured to the spokes by means ,of screws. The plates 33extend to the outside periphery of the spokedwheel 12, the

Y inside edges of said plates 29 and 33 forming a hexagon orV otherpolygon, depending on the number of plates used. The plates 29 and 33are on the same horizontal plane.

A blade-carrying plate 34 is secured to f wheel 12 and disposed at ahigher level than the plates 29 and 33 and extends from the .outsideperiphery of the wheel 12 toward the plate 29 so as to leave a clearancebetween Y Vthe inside edge of the plate 34 and the curved edge 32 of theplate 29, said edges being parallel with each other. A slicing blade 36is secured to the inside edge of the plate 34 in a manner clearly shownin Figure `7 The blade 36 is held against'the inclined edge 37 Y n ofthe plate 34 by means of a clamping block 38 which, in turn, issecuredto thelplate 34 by means of screws 39. When itis desirable to adjust theblade 36,.the screw 39is loosened up, thereby permitting the manualadjustmentof the blade. It is to be noted lade 36 and the plate 29 andthe difference between the level of the plates 29 and 34. The plate 34must be raised or lowered, and this adjustment of said plate 34 isaccomplished by the adjusting mechanism, clearly shown in Figure 4. nismis denoted in its entirety by numeral 42. At theV shorter end of theplate 34, a correspondingly shorter adjusting mechanism 43 is disposed,andas the operation and structure of both adjusting mechanisms areidentical, except for the dimensions thereof, the description of thestructure of the adjusting mechanism 42 will be sufficient to explainthe operation of both adjusting mechanisms.V

The spoke of the wheel 12 has a depending lug 44 thereon, which is in`alignment with a bearing 46, depending from the rim 41 of said wheel. Inthe bearing, Aa shaft 47 is supported and maintained in an axially fixederyl of the rim 41. In that case, any con-V ventional means may beemployed for rotating the shaft such as a. square or polygonal socket inthe end ofthe shaft, Hush with the bearing 46, in which socket a crankmay be inserted for rotating the shaft when adjustment of the plate isrequired. n

A worm 52 is formed on the middle por- The adjustin Vmecha-` tion of theshaft 47, and it isv always in mesh j j with teeth 53 on the undersideof a wedge 54. The wedge 54 is guided in its -move-V ment by a dovetailgroove 56 as it 1s clearlyY shown in Figure 10, the 'dovetail 4groovebeing cut into the spoke of the wheel 12,

and being disposed so as to guide the wedge` 54V radially and in ahorizontal plane..V The uppermost portion of the wedge is provided witha dovetail 57.V A rdove-tail groove 58 is cut-vin the underside oftheplate 34,the inclination of said latter `groove being complementary tothe inclined dovetail 57. When the Yshaft 47 Y is rotated, the worm 52will cause the movement of the wedge 54 toward or away from the centerof the wheel 12. rI-he movement of the 4wedge in a horizontal planecauses the dovetail 57 to slide in i are to be delaminated.

the dovetail groove 58. When the wedge is advanced toward the center ofthe wheel l2, the plate 39 will be raised thereby and vice versa.

In order to permit the use of similar graduations on both adjustingmechanisms 42 and 43, the wedge 54 and the corresponding inclination ofthe groove 58 are steeper in the adjusting mechanism 43 than that in 42,thus, compensating for the change in the length of the adjustingmechanisms. In case it is found necessary to provide a more substantialsupport for the plate 34, a third support, incorporating the adjustingmechanisms heretofore described, may be disposed at an intermediatepoint between the adjusting mechanisms 42 and 43. It is also possible toprovide a web below the plate and render the same stationary and' employan adjusting mechanism on the now stationary plates 29 and 33 forraising or lowering the same relative to the cutting edge of the blade36, thereby adjustingA the spacing therebetween.

Each of the feeding mechanisms C comprises a guide 60 secured to thebracing members 8. The guide 60 consists of a plate bent at rightangles. As the slicing mechanism B is rotated in a contra-clockwisedirection, looking at Figure 2, the open side of the right angle guidepoints in a direction opposite to the rotation of the slicing mechanismso that the material guided thereby is pressed against the walls thereofby the rotationof the slic` ing mechanism. Bearing brackets 6l entendfrom one of the walls of the guide 60. A shaft 62 is slidable in thebearing brackets 6l. The downward movement of the shaft 62 is effectedby the gravity thereof and is limited by a collar 63 on the shaftabutting the upper face of the bracket 61. The lower end of the shaft 62flanged as at V64, to which flange is secured a rectangular guide block66 slidable on the guide 60. The machine in the illustrationisdesignedto cut rectangular battery separators. Therefore, both theguide and the guide block 66 are so shaped as to guide a rectangularwood block, not shown, from which the separator sheets The' guide block66 conforms to the outline of the battery separator. In case any othershape of battery separator is desired, the shapes of the guide block 66and the guide 60 are changed so as to conform therewith.

In order to facilitate the slicing of smooth battery separator sheets,the wooden blocks, from which the separators are cut, may be steamedbefore being placed in the guide 60. C Then by raising the shaft 62 inthe brackets Gl. sufficient space is provided below the guide block 66to permit the insertion of wooden blocks below the guide block 66 thusthe steamed or otherwise prepared wooden G5 blocks are pressed againstthe stationary plates 29 and 33 by the weight of the shaft 62,-theflange 64, and the guide block 66. The raising ofthe shaft 62 isaccomplished by means of a cord or cable 67 guided on a pulley 68 whichis secured to a ceiling 69 0f thefbuilding. The cable 67 is manuallyactuated and may be secured to a hook or any other means on the wall ofthe shop, not shown.

The slicing of the battery separators is accomplished as follows Theprepared wooden blocks are placed in the guide below the block 66 in themanner heretofore vdescribed, and they are held against the stationaryplates 29 or 33. By starting the motor 26, the wheel l2 is rotated 'in acontraclockwise direction, as may be seen in Figurek 2.- As the plates29 and 33 are on the same level, the plate 29 will readily slideunder'the wooden block. The wider edge of the plate i 29 slides firstunder the block so that the edge ofthe blade nearest to the rim 41 isbrought first into contact with the outside edge of the rectangularblock. Further rotation of the wheel 12 causes the blade to furtherincise into the block. As the block is pressed against the lower plate29, the thickness of the cut is determined by the space between thecutting' edge of the blade 36 and the top of the plate 29. The blade 36is curved at such a radius that the outermost point thereof engages theoutside edge of the block to be cut, while the innermost end of thecutting blade passes thru the inside edge of the block. The

rotation of the wheel l2 moves the blade 36 with a carvingmotion thruthe whole crosssectional area of the wooden block, thereby. assuring asmooth cut, the line of cutbeing slightly diagonal to the .direction ofthe grain of the block and slightly diagonal tothe edge of the block,thereby resulting ina shearing cut approximately parallel with the grainand the edges of the block. As the spacing betweenl the cutting blade 36and the top-of the plate 29 is accurately adjusted, the wholey vlengthof the slice cut olf by the blade will be accurate and of even thicknessthruout.

Immediately when Vthe outer end of the blade 36 cuts into'the outer edgeof the block,

the delaminated portion of they block enters 1f into the spacingbetween'the bla-de 36 and the top of the plate 29. The curved edge V32of the plate 29 is beveled as at 76, and the battery separator, slicedoff by the blade 36, is

directed downwardly thereby. By the time theblade 36 completes the cutthru the block to the inner edge thereof,the whole slice lof the batteryseparator sheetv is below the blade, and when completely separated fromthe block, it slidesthru-the space by its own'.

gravity. The thickness of the battery separator sheet is accuratelydetermined bythe adjustment-of the blade 36 by means of the adjustingmechanisms 42 and 43.

Conveyors 77 are disposed below 'the sliclll) ing mechanism B, eachconveyor 77 being opposite to a feeding mechanism C so that when thebattery separator sheets slide out of the slicing mechanism thru thespace between the blade 36 and the plate 29, the separator sheets dropon the conveyor 77. One of said conveyors is shown in detail, while theposition of the other four conveyors is indicated in dash-and-dottedlines in Figure 2. The conveyors shown in the present illustration-aremanually operated by means of a hand wheel 7 8 rotating the oppositedrums 79 by means of an endless belt 80. The battery separators arecarried on the belt 77 out from below the slicing mechanism so that theymay be removed therefrom without necessitating the handling of thebattery separators belov7 the'machine. It is to be understood that acontinuous conveyor, especially designed for the machine, may beemployed to carry away the separator sheets from below the slicingmechanism. The conveyor 77 is shown as an illustration of the fact thatthe battery separators dropping thru the slicing mechanism are receivedby a conveyor, by which they are carried away from below the slicingmechanism. Y

The battery separators will be smoothly finished because of the factthat the blocks are steamed or otherwise prepared and the blades arecurved so as to gradually, but speedily, enter the blocks with a carvingor shearing motion so that while the blade moves into the wooden blocksin a direction toward the center of the slicing mechanism C, it alsomoves in an annular path so vthat the cut is nearly tangential, andnearly paralleling the grain of the block, thereby permitting the smoothcutting of the extremely thin separators without crimping the saine.

A blade-sharpening mechanism, denoted in itsentirety by the numeral 81,is'adapted to accurately grind the edge of the blade 36 and tobe guidedalong the said edge by the rotary movement of the Wheel 12 itself; Thestruc- Y ture of the grinder is clearly illustrated in Figure 8 andcomprises a `rotating disc 82 made of carborundum or any other grindingmaterial, said disc being rotated in the conventional mannerby anelectric motor 83. A bearing sleeve 84 of the electric motor 83 isfixedly secured into a bracket 86, ,which bracket is formed with adovetail 87 at the free end thereof. VA traveler 88 has a groove 89therein, complementary to said dovetail 87 in which said dovetail isslidable. In a lug 91 on the traveler 88 is a crank shaft 92.

Said crankshaft is rotatable in the lug 91 and s f isheld against axialmovement by a shoulder 93 and a collar 94 thereon disposed at theopposite sides of the lug 91. A jack screw 96 forms one end of the crankshaft 92, said screw being in engagement ywith athreaded hole `97 in thedovetail 89. The turning of the crank shaft 92 causes the power of the`screw to be applied to the bracket 86 for raising and lowering t-he samein a vertical plane as guided by a dovetail groove 89. The lmovement ofthe grinding disc 82 in a horizontal y vplane is effected by themovement of the traveler 88 along a rail 98 which is fixedly secured toa bracing member 8. The dovetail 99 of the rail '98 slidably engages adovetail groove 101 in the traveler 88. `The traveler 88 is connected tothe wheel 12 by means of a link 102, one end of which is pivotallysecured to the traveler as at103, the other end thereof being pivotallyand removably se-V The grinding of the blade 36 is performed as follows:First, the slicing mechanism B is rotated until the inside end of theblade is below the grinding disc 82. The length of the link 102determines the position of the grinding disc 82. Then, by turningv thecrankshaft 92, the jack screw 96 lowers the bracket 86 and the grindingdisc 82 therewith until the same rests on the blade 36. New, thestarting of the motor 83 rotates t-he disc 82 in a horizontal plane sothat the disc grinds the blade 36 to a level with the horizontal top ofthe blade-carryingl plate 34. By manually rotating the wheel 12 in aclockwise direction, the blade 36 is gradually fed under the disc 82,and at the same time, the link 102 is moved by the eccentric mechanism104 thereof. The rotating movement at said point 104 is transformed bythe link 102 into a linear movement, sliding the traveler 88 on the rail98. The location of the eccentric point 104 is so determined that thelinear movement of the traveler 88 moves the grindcured at an eccentricpoint 104 on the wheel n ing disc 82 so as to follow the Vcurvature'ofVthe blade 36 when the blade is fed below Athe disc'82. By manuallyrotating the wheel 12 back and forth, the blade is fed under the therequired sharpness. Y

It is apparent from Figure 7 of the drawings that the edge of the blade3G and the top of the blade 34 are in a single plane. When the blade isworn down, before the regrinding takes place, the clamp 38 is loosenedand the blade is pulled out from under the plate 34- to the desiredextent.y Then the clamp 38 is tightened, holding the blade in positionwhile Vit is ground down by the aforesaid method to the level oftheplate 34. Y

For the grinding of the lower face of the blade 36, the same grinder 81is mounted on a curved guide (not shown) conforming to the radius of theblade.V The bevel of the grinding disc 82 is brought into contact withthe lower surface of the blade 36. Then the V motor is started and thegrinding devicetraverses the cutting edge of the'bla'de as it is sli dalong its curved guide. This necessarily requires either the dismountingof the plate 34 with the'blade 36 and the removing thereof to anotherfixture and mounting thereof, or the removal of'pl'ate 29 and thelmounting of said curved guide in its place.

It will be recognized that a particularly compact device is provided toaccomplish the above described methodfof slicing'the eX- tremely thinbattery separator sheets; and one which combines accurateness with aruggedness of construction and positiveness of operation, particularlyadapted for its use. Being a unitary character, the device, after theadjustment of the blades, requires no further careful setting up andlends itselfto effective application by the labor ordinarily available.

Y Although I have shown and described the preferred embodiment of myinvention, it is to be understood that changes within the domain of mereform or construction or arrangement maybe made by persons skilled'in theart without .involving any cha-nge in mode of operation or of'functionor of results described in the appended claims.

Having thus described invention, what I now claim as novel 'and desireto secure by Letters Patent is:

I claim l. A slicing machine comprising a rotatable wheel having radialspokes, supporting plates supported by the spokes, adjustable platessupported by the spokes and in alternate relation to the tiret-namedplates, cutting blades carried by the adjustable plates, stationaryguides contiguous to the face of the plates and means for forcing anobject within the guides into contact with the plates.

2. A slicing machine comprising a rotatable wheel having radial spokes,segmental plates affixed to the alternate pairs of spokes at a pointintermediate the hub and the rim thereof, plates adjustable withrelation to the plane of the fixed plates carried by the wheel andhaving cutting blades adjustably secured thereto, elongated guideshaving their ends in juxtaposition to the. faces of the fixed plates,plunger shafts within the guides and means for retaining the plungershafts at the limit of their movement in one direction.

3. A slicing` machine comprising a rotatable wheel, segmental platesaflixed to the alternate pairs of the spokes of the wheel, cuttingblades carried by the spokes in the alternate spaces therebetween, saidcutting blades being adjustable with r-elation to the plane of the fixedplates.

-l. A slicing machine comprising a rotatable wheel, plates, theoilteifaces of which lie in the same plane and form a disc-like support,plates capable of vertical adjustment with relation to the plane of thesupport, means for reciprocally adjusting the movable plate journaled independent lugs carried by the wheel and a cutting blade carried by themovable plate.

5. A slicing machine comprisinga rotatablel wheel, plates the youter'faces of vwhich lie in the same plane and Vform a disc-like support,plates capable of vertical adjustment with relation to the plane of thesupport, screw-threaded means for reciprocally vadjusting the movableplate 'journaled in dependent lugs carried by the wheel anda cuttingblade carried by the movable plate.

6. A slicing machine-comprising a rotatable wheel, supporting platesspanning jthe alternate spaces between the spokes of the wheel and xedlyrelated thereto, plates v affixed to the spokes and spaced inwardly/ ofthe lrim of the wheel interposed between `the rst-named plates, platescapable of reciprocal movement with relation to 'the inwardly spacedplates interposed between the outer curved surfaces thereof and V"therim ofthe wheel, an adjustable cutter blade carried'by thev adjustableplates, inwardly tapering wedges supporting the adjustable plates 'andmeans for imparting reciprocal movement to the wedges.

7. A slicing' machine comprising a rotatable wheel, supporting platesspanning the alternate spaces between the spokes fof the wheel andfixedly related thereto, plates ailirred to the spokes Aand spacedinwardly of the gr-im of the wheel interposed betweentheirst-namedplates, plates capable of reciprolcal vinovenient withrelation Tto 4 the inwardly spaced plates interposed between `the outer'curvedlsurfaces thereof andthe rim ofthe wheel, an "adjustable cutterblade 'carried by the adjustable plates, 'inwardly tapering wedgessupporting the-adjustable plates and a worm gear'for impartingreciprocal movement to the wedges. 1

8. A slicing machine comprising -a wheel, plates spanning the'alternatefspace's between the spokes of the wheel, 'grooves within thespokes, wedges capableof reciprocal movement with-in the grooves, lugsdepending fromthe spokes, a worm j ournaled-in the-lugs for impartingreciprocal movement tothe wedges and cutting blade supported by -thewedges.

9. A slicing machine havino 'a supporting frame, braces carried by therame, a wheel having va dependent hub, a lstationary shaft extending`:through the fhub, a bearing sur- `rounding theshaft-,st-ruts extendingfromfthe frame members and ahixed to the bearing, a

worm wheel carried bythe hub` and having a worm 'meshing therewith,.platesspan-ning the alternate spaces 'between the spokes of the Y wheeland ailiXed thereto with their outer edges contiguous with the rim ofthe wheel, cutting' blades carried by the plates, 'platesinterposedbetween the rst-named plates and aflixed to the spokes ofthewheel having their outer curved faces spaced from the rim of thewheel, plates capable of vertical adjustment with relation to the plane-of ythe first-:named CII `rotatable wheel journaled within the frameand below the braces, plates spanning the al- YVternate spaces betweenthe spokes and affixed thereto, cutting blades carried by the plates,plates capable of vertical adjustment with relation to the plane of thefirst-named plates interposed therebetween, sharpening mechanism carriedby one of the braces and capable vof longitudinal reciprocal movementthereof, and a link eccentrically connecting the sharpening mechanismand one of the spokes of the wheel. j

11. A slicing machine having a frame, braces connecting portionsof theframe, a rotatable wheel journaled Withinthe frame and below the braces,plates spanning the alternate spaces between the spokes and affixedthereto, cutting blades carried by the plates, plates capable ofvertical adjustment with relation to the plane of the first-named platesinterposed therebetween, a sharpening mechanism carried by one of thebraces and capable of longitudinal reciprocal movement thereof,V and alink eccentrically connecting the sharpening mechanism and one of thespokes of the wheel for positioning the sharpening mechanism withrelation to the face of the cutting blade. Y

.12. A slicing machine having a frame, braces connecting portions of theframe, a rotatable wheel journaled within the frame and below thebraces, plates spanning the alternate spaces between the spokes andaffixed thereto, cutting blades carried by the plates, plates capable ofvertical adjustment with revertical movement'to the sharpeningmechascreW-threadedmeans for reciprocally acl-- justing the movablelates journaled in dependent lugs carried y the wheel and a cuttingblades carried by the movable plate withl` its respective ends spaced atunequal distances from the rim of the wheel.

l5. A slicing machine comprising a rotatable wheel, plates, the outerfaces of which lie in the same plane and form a disc-likek support,plates capable of vertical adjustment with relation to the plane of thesupport, screw-threaded means for reciprocally adjusting the movableplates journaled independent lugs carried by the wheel and curvedcutting blades carried by the movable plates and positionedeccentrically with relation to the axis of the hub of the wheel.

, In testimony whereof l affix my signature.

JOHN H. DALEN.

ation to the plane of the first-named plates Y interposed therebetween,sharpening mechanism carried` byA the braces and capable of longitudinalreciprocal movement thereof, and a link 'eccentrically connecting thesharpening mechanism and one of the spokes of the wheel ,forautomatically positioning the sharpening mechanism with relation to thecutting edge of the blade when the wheel is rocked upon its axis. v

V13. VA slicing machine having a frame, braces connecting portions ofthe frame, a

'rotatable wheel journaled within the frame and below the braces, platesspanning the alternate spaces between the spokes and affixed thereto,cutting blades carried by the plates, plates capable of verticaladjustment with relation to the plane of the lirst-namedplatesinterposed therebetween, sharpening mechanism carried by one of thebraces and capable of longitudinal reciprocal movement thereof,

a link eccentrically connecting the sharpenf ing mechanism and one ofthe spokes of the wheel, and means for imparting reciprocal

